JJ Johnson

Mage 19GAMNMRORSEABSCSSCUOFM

47 plausible swims · 7 meets · 2021-08-10 → 2026-06-28

Personal records

Event	Course	Best	Date	Meet
50 Freestyle	LCM	23.45	2025-06-07	2025 National Championships venue
100 Freestyle	LCM	51.76	2025-05-16	2025 MN STRM Spring Startup venue
200 Freestyle	LCM	2:12.70	2025-05-30	2025 MN WOLF HUFF N PUFF INVITE venue
50 Butterfly	LCM	24.40	2025-06-04	2025 National Championships venue
100 Butterfly	LCM	52.81	2025-06-05	2025 National Championships venue
200 Butterfly	LCM	1:58.42	2025-06-03	2025 National Championships venue

PR splits

100 Freestyle LCM 51.76

24.91

26.85

Front half 24.91s · back half 26.85s

200 Freestyle LCM 2:12.70

23.60

38.78

36.27

34.05

Front half 62.38s · back half 70.32s

100 Butterfly LCM 52.81 RT 0.65s

24.38

28.43

Front half 24.38s · back half 28.43s

200 Butterfly LCM 1:58.42 RT 0.65s

26.21

29.61

30.67

31.93

Front half 55.82s · back half 62.60s

Reaction time

fastest 0.61s average 0.653s slowest 0.68s 7 electronic starts

Start reaction over time faster starts higher

From electronically-timed starts only (~2% of corpus swims carry a reaction time). PRs with a recorded reaction show an RT chip in the splits section above.

Progression

Faster times are higher. One card per event, all courses & history.

50 Freestyle LCM 23.45 10 swims

100 Freestyle LCM 51.76 8 swims

200 Freestyle LCM 2:12.70 1 swim

50 Butterfly LCM 24.40 5 swims

100 Butterfly LCM 52.81 12 swims

200 Butterfly LCM 1:58.42 11 swims